After some time fighting baddies making when I was done with the potion I quicksaved and crashed. I thought it was a mod so I uninstall the new mods which I have recently added. It did not help, I still crashed whenever I quicksaved.
I then decided to turn off all saves (Save on travel, etc) in the settings and I never saved while I was finishing the quest. I then completed the quest and made my way out of the castle eager to see if it was just a glitched quest.
I could quicksave normally. Thank god or Talos? (Skyrim forums are confusing!)
So any help on what caused this? My guess is that it was the different blood texture that I was using because there was blood in the dream state and as I reverted back to the normal state it got confused with saving or something.